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Radial fixing and loading device of frequency matcher

A frequency matching and loading device technology, applied in the direction of aircraft component testing, etc., can solve the problems of structural irregularity inspection, etc., and achieve the effect of reliable detection results, convenient installation and stable structure

Active Publication Date: 2018-04-20
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is no special radial fixed loading device for frequency matchers in the prior art to inspect components with irregular structures such as frequency matchers

Method used

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  • Radial fixing and loading device of frequency matcher
  • Radial fixing and loading device of frequency matcher

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Embodiment Construction

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses a radial fixing and loading device of a frequency matcher. The radial fixing and loading device of the frequency matcher comprises a radial fixing assembly, a ladder threaded rod and a radial loading and mounting assembly; the ladder threaded rod is connected with the frequency matcher through the radial mounting assembly and is partially inserted into the frequency matcherfrom a hole in the frequency matcher, and the part, inserted into the frequency matcher, of the ladder threaded rod is provided with a ladder raised part with the same size as that of the outer ringof a bearing capable of being arranged in the frequency matcher; the radial loading and mounting assembly is provided with a handle end center line, and the handle end center line coincides with the radial center line of the bearing in the frequency matcher; the radial fixing assembly is provided with a handle end center line, and the handle end center line coincides with the radial center line ofthe bearing in the frequency matcher. The radial fixing and loading device of the frequency matcher can guarantee that during loading, shearing deformation is generated in the radial direction of thebearing.

Description

technical field [0001] The invention relates to the technical field of frequency matcher detection, in particular to a radially fixed loading device for a frequency matcher. Background technique [0002] The frequency matcher selected for the main propeller hub of a certain type of helicopter is a block type viscoelastic damper. There are two pieces of viscoelastic silicone rubber on the upper and lower sides, which provide shimmy damping through shear deformation and play the role of shimmy reducer. Elastic constraints are also provided for the blade root to adjust the natural frequency of blade shimmy. During use, the frequency matcher should be installed at the end of the flexible arm of the star according to its stiffness parameters and using a suitable pairing principle. [0003] For this reason, it is necessary to detect the stiffness of the frequency matcher through a certain detection technology, and use the appropriate matching principle to match according to the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 刘红艳刘巍孙云伟
Owner CHINA HELICOPTER RES & DEV INST